5-year old girl and girlfriend killed by pro-gun blogger and shooting instructor in murder/suicide

An ex-marine in Central, Utah, Landon S. Jorgensen, had recently moved in with his girlfriend, Adria Jordan Parker, and her 5-year old daughter, Eliza Kate Parker.  But neighbors say they argued all the time.  After another argument, it appears that Jorgensen was moving out, but then he shot and killed the woman, child, and then himself.

Jorgensen was a pro-gun blogger, shooting instructor, and frequent contributor to pro-gun forums.

From the article:

Friday, Washington County Sheriff's Lt. Rob Tersigni said a preliminary investigation showed that Jorgensen, 24, shot and killed 25-year-old Adria Jordan Parker and her daughter, Eliza Kate Parker, before shooting and killing himself. 

Jorgansen apparently had recently moved into the home with Parker. The bed of his  pickup truck parked outside the house was filled with his possessions, leading investigators to speculate that he may have been moving out. 

One neighbor said he often heard screaming and yelling coming from the house at all hours, but police had never been called.
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Eliza attended kindergarten at Enterprise Elementary School. School secretary Tammie Evans said students were told Friday morning that there had been a death, without going into detail, and that a crisis team from the Washington County School District was available if they needed to talk.
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Jorgensen is a former U.S. Marine and gun enthusiast, according to neighbors and investigators. He had a blog, "Guns, Freedom and Politics: One young man's perspective," in which he said he aspired to own a gun shop and shooting range one day. Jorgensen was also the former president of the Red Cliff rifle group. 

Jorgensen taught a tactical pistol class as late as June, a post on the Southern Utah Pistol & Revolverwebsite states. He also offered to teach a class for people to receive their Utah concealed firearms permit.
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On his blog, he wrote, "I am a USMC veteran and was medically discharged for my back issues. When I was discharged I immediately got into being a firearms instructor. My passion is to teach people the correct way to use firearms so that they can be both safe and fun."
He listed "Arguing With Idiots" by Glenn Beck as his favorite book. 

At the forum of the website concealedcarryforum.com, where Jorgensen was a frequent contributor, many people expressed shock and sadness over his death.

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